Updated ReadMe

Author: sayyed-kamran

README.md

@@ -184,7 +184,7 @@ First, install [Docker](https://docs.docker.com/get-docker/) and
 Please use following command to run peaq-network-node parachian in the docker container connected with polkadot relaychain running in the PEAQ development environment. 
 
  ```bash
- docker run kamranpeaq/peaq-node-parachain:2.0 --chain ./node/src/chain-specs/peaq-dev-parachain-raw.json \
+ docker run peaq/parachain:v1.1.4 --chain ./node/src/chain-specs/peaq-dev-parachain-raw.json \
 --base-path /tmp/parachain/alice \
 --port 40333 \
 --ws-port 8844 \
@@ -197,6 +197,55 @@ Please use following command to run peaq-network-node parachian in the docker co
 
 Once you run this command, wait for a few second. Now the peaq parachian should be running in the docker container that is connected to relaychain running in PEAQ dev environament. 
 
+### Run on your local machine with Docker commands
+
+Please follow the steps given below to run peaq-network-node parachian on your local machine connected with polkadot
+relaychain running in the PEAQ development environment. It is assumed that you have already downloaded the source code
+for peaq-network-node from the git repository
+
+1. CD into the peaq-network-node directory:
+```bash
+cd peaq-network-node
+```
+
+2. Checkout the appropriate branch:
+```bash
+git checkout run_peaq_dev_parachain_with_docker_commands
+```
+3. Create the following folder:
+```bash
+mkdir ./.local
+```
+
+The folder .local is needed because that is where data such as session keys are stored for validators. Also we bind mount from the container folder /root/.local to the host machine project root folder ./.local.
+
+Now run the following script to start a peaq-network-node parachain that will connect to the polkadot relay chain running in peaq development environment:
+```bash
+./scripts/docker_run.sh
+./target/release/peaq-node \
+--chain ./node/src/chain-specs/peaq-dev-parachain-raw.json \
+--base-path /tmp/parachain/alice \
+--port 40333 \
+--ws-port 8844 \
+-- \
+--execution wasm \
+--chain ./node/src/chain-specs/rococo-local-relaychain-raw.json \
+--port 30343 \
+--ws-port 9977
+```
+This command will first compile your code (if it is not already compiled), and then start a peaq-network-node parachain. The node running on your local machine will take sometime to sync up. Make sure that the parachain blocks are generated. 
+
+You can also replace the default command by appending your own. A few useful ones are as follows:
+
+```bash
+# Purge the local dev chain
+./scripts/docker_run.sh ./target/release/peaq-node purge-chain --dev
+```
+```bash
+# Check whether the code is compilable
+./scripts/docker_run.sh cargo check
+```
+
 ### Parachain Launch
 
 1. Please use the [peaq-node-builder](https://github.com/peaqnetwork/peaq-node-builder) to build the project